IAAILoopAhead
LoopAhead: Speculating Ahead for Faster Decoding in Looped Language Models
A speculative decoding framework for looped transformers that gives different recurrent depths complementary roles: a lightweight lookahead drafter predicts several future tokens from early-loop states, deeper-loop feedback decides which draft branches to continue, and the full-depth model makes final decisions.
Inside the method
Early-loop state → lookahead drafter → deeper-loop branch control → full-depth verify
Simplified conceptual schematic. Consult the paper for the complete architecture.
- Recurrence family
- Full-stack recurrence
- Depth control
- Early loops draft; full depth decides
- KV / state strategy
- See paper
Reading note
Reports up to 7.82× decoding speedup over autoregressive decoding while preserving the target model's output distribution.
Sources checked 2026-10-28. This catalog does not imply independent reproduction.
Related works
Cite this work
@misc{loopahead2026,
title = {LoopAhead: Speculating Ahead for Faster Decoding in Looped Language Models},
author = {Zixuan Liu and Nan Xue and Rui Bao and Yuhang Xu and Xiaofeng Cao and Jiangchao Yao and Zhiyong Chen},
year = {2026},
eprint = {2610.21594},
archivePrefix = {arXiv},
url = {https://arxiv.org/abs/2610.21594}
}